I statically link all dependencies to prevent dll issues.
Do you by any chance use Windows 10 1809?
Looks like PhysicsFS 3.0.1 (which blockattack 2.5.0 is linked against) broke on Windows 10 1809. I am not certain that it affects BlockAttack but I was testing on 1803 and because 1903 has been released I cannot update to 1809 any more.